My kids go to a sports group and I've come to realise that one of the mums is married to someone I had a casual relationship with 19 years ago, friends with benefits if you will. Theres no ill feeling at all on my part, she is lovely and I'm thrilled for him to see him happily married with cute kids. But as we chat more I feel a little uncomfortable, his family know who I am, will she be angry with me if someone points out I have a distant history with her now husband?